OFFSET
1,1
COMMENTS
All entries are divisible by 2^14.
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
EXAMPLE
For n=3, a(3) = det(257, 131, 101, 103; 137, 107, 173, 239; 241, 179, 181, 311; 313, 283, 157, 191) = 268615680.
MAPLE
N:= 100: # for a(1)..a(N)
R:= NULL:
L:= [seq(2*i-33, i=1..16)]:
for k from 1 to N do
for i from 1 to 16 do
for x from L[i]+32 by 32 do until isprime(x);
L[i]:= x;
od;
R:= R, LinearAlgebra:-Determinant(Matrix(4, 4, L));
od;
R;
CROSSREFS
KEYWORD
sign
AUTHOR
J. M. Bergot and Robert Israel, Jan 26 2021
STATUS
approved